Despite the success of Google’s Custom search, it seems that many are flocking to Yahoo’s BOSS option for something even more customizable. Using Yahoo’s own search APIs, BOSS allows its users to take the power of Yahoo Search and implement it in with their own content.
The biggest selling point for using BOSS is the fact that it is totally customizable. After all, you need only abide by the rules of the API and the rest is up to you. Make it yours to the extreme, no depending on Google’s restrictive templates.
As for thoughts on BOSS being bigger than Bing, as listed in this article, who cares? While both tools serve their perspective markets well, I don’t see either as being on the same field of play at this point. Bing is more for the end user while BOSS is clearly something cool for the web developer.